Saving "newest" document

Elastic Stack Elasticsearch
1

If I have a document, that's being saved with a key, and a document already
exists with that same key, is there any way to only save "newest" document?
For example, if I have a key abc, and a date 2013-08-10 and a document
comes in with key abc and an older date, any way to let es know and ignore
the update, since the document is older? And if a newer document comes in,
then overwrite abc with newer document. I am concerned that if I pull the
value to compare in the code, then in a multi-threaded environment, I could
still lose the latest doc. Not to say that same can't happen within ES, but
just curious if I set _version field or something to time stamp, would that
do anything or any way to force saving only latest?

Thanks
Victor

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2

See versioning in http://www.elasticsearch.org/guide/reference/api/index_/

I think that setting version_type to external could help here. Send date in ms as version number.
You should get failures in case of indexing with an older value.

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David :wink:
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs

Le 3 août 2013 à 20:04, Victor D vmv890@gmail.com a écrit :

If I have a document, that's being saved with a key, and a document already exists with that same key, is there any way to only save "newest" document?
For example, if I have a key abc, and a date 2013-08-10 and a document comes in with key abc and an older date, any way to let es know and ignore the update, since the document is older? And if a newer document comes in, then overwrite abc with newer document. I am concerned that if I pull the value to compare in the code, then in a multi-threaded environment, I could still lose the latest doc. Not to say that same can't happen within ES, but just curious if I set _version field or something to time stamp, would that do anything or any way to force saving only latest?

Thanks
Victor

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